#pragma once

#include <obs.hpp>
#include "qt-display.hpp"

enum class ProjectorType {
	Source,
	Scene,
	Preview,
	StudioProgram,
	Multiview
};

class QMouseEvent;

enum class MultiviewLayout : uint8_t {
	HORIZONTAL_TOP_8_SCENES = 0,
	HORIZONTAL_BOTTOM_8_SCENES = 1,
	VERTICAL_LEFT_8_SCENES = 2,
	VERTICAL_RIGHT_8_SCENES = 3,
	HORIZONTAL_TOP_24_SCENES = 4
};

class OBSProjector : public OBSQTDisplay {
	Q_OBJECT

private:
	OBSSource source;
	OBSSignal removedSignal;

	static void OBSRenderMultiview(void *data, uint32_t cx, uint32_t cy);
	static void OBSRender(void *data, uint32_t cx, uint32_t cy);
	static void OBSSourceRemoved(void *data, calldata_t *params);

	void mousePressEvent(QMouseEvent *event) override;
	void mouseDoubleClickEvent(QMouseEvent *event) override;

	int savedMonitor;
	bool isWindow;
	QString projectorTitle;
	ProjectorType type = ProjectorType::Source;
	std::vector<OBSWeakSource> multiviewScenes;
	std::vector<OBSSource> multiviewLabels;
	gs_vertbuffer_t *actionSafeMargin      = nullptr;
	gs_vertbuffer_t *graphicsSafeMargin    = nullptr;
	gs_vertbuffer_t *fourByThreeSafeMargin = nullptr;
	gs_vertbuffer_t *leftLine              = nullptr;
	gs_vertbuffer_t *topLine               = nullptr;
	gs_vertbuffer_t *rightLine             = nullptr;
	gs_effect_t *solid = nullptr;
	gs_eparam_t *color = nullptr;
	// Multiview position helpers
	float thickness = 4;
	float offset, thicknessx2 = thickness * 2, pvwprgCX,
		pvwprgCY, sourceX, sourceY, labelX, labelY, scenesCX, scenesCY,
		ppiCX, ppiCY, siX, siY, siCX, siCY, ppiScaleX, ppiScaleY,
		siScaleX, siScaleY, fw, fh, ratio;

	float lineLength                = 0.1f;
	// Rec. ITU-R BT.1848-1 / EBU R 95
	float actionSafePercentage      = 0.035f; // 3.5%
	float graphicsSafePercentage    = 0.05f; // 5.0%
	float fourByThreeSafePercentage = 0.1625f; // 16.25%
	bool ready = false;

	// argb colors
	static const uint32_t outerColor      = 0xFFD0D0D0;
	static const uint32_t labelColor      = 0xD91F1F1F;
	static const uint32_t backgroundColor = 0xFF000000;
	static const uint32_t previewColor    = 0xFF00D000;
	static const uint32_t programColor    = 0xFFD00000;

	void UpdateMultiview();
	void UpdateProjectorTitle(QString name);

private slots:
	void EscapeTriggered();

public:
	OBSProjector(QWidget *widget, obs_source_t *source_, int monitor,
			QString title, ProjectorType type_);
	~OBSProjector();

	OBSSource GetSource();
	ProjectorType GetProjectorType();
	int GetMonitor();
	static void UpdateMultiviewProjectors();
	static void RenameProjector(QString oldName, QString newName);
};
